.tou{
        background-image: url("https://image.wjx.cn/images/newbg/oldbg2.jpg");
        background-repeat: no-repeat;
        background-position: bottom;
        text-align: center;
        height: 150px;

   }
   body{
        background-image: url("https://image.wjx.cn/images/newbg/oldbg2-bg.jpg") ;
        background-repeat: no-repeat;
        background-position: center;
        background-size: cover;

   }




    .co{
        background-color: white;
        background-position: center;
        width: 910px;
        height: 1500px;
        margin: auto;


    }
    .bt{
        text-align: center;
        font-size: 40px;
        color: #3300FF;
    }
    .do1{
        margin-left: 10%;
        margin-top: 10%;
        font-size: 20px;
    }
    .do{
        margin-left: 10%;
        margin-top: 1%;
        font-size: 20px;
    }
    .input1{
        width:100px;
        border:0;
        border-bottom:1px solid #000;
        padding: 5px;
    }

    .xiahuaxian{
        border-bottom:dashed 1px #e4b9b9;
        display:block;
}